ingredients: extra-virgin olive oil or lard, as per taste but consider a thick layer in the pan 3 thick slices of guanciale, pancetta, or good bacon cut into stripes or cubes 1 red onion, roughly cut 2 cups Basic Tomato Sauce Freshly grated Pecorino Romano In a saute pan, combine the olive oil, with the onion, cook the onion at low heat (otherwise it burns) and once cooked remove it from the pan. Add the tomato sauce, turn up the heat, and bring to a boil, then lower the heat